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AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manual
Example 1: HTB Queue Discipline Enabled
In the example below, HTB Queue Discipline is enabled. The PPPoE1 connection has a total of 300Kbits of
bandwidth, of which 100Kbits is given to CoS1 and another 100Kbits is given to CoS2. When there is no
CoS1 or CoS2 packet, CoS6 packets have the whole 300Kbits of bandwidth.
Figure 35: HTB Queue Discipline enabled
Example 2: Low Latency Queue Discipline Enabled
In this second example, Low Latency Queue Discipline is enabled. CoS1 is not rate controlled (hence the
field is disabled). CoS2 takes 100Kbits when there is no CoS1 packet. CoS6 has 300Kbits when there is no
CoS1 or CoS2 packets. This is similar to the HTB queue discipline as they are both rate-based algorithm,
except that CoS1 is handled differently.
Figure 36: Low Latency Queue Discipline enabled
Example 3: PRIOWRR Enabled
In this third example, PRIOWRR is enabled. Since PRIOWRR operates only on the number of packets being
transmitted, the max rate field has been disabled. Only percentage can be assigned to the CoS2 - CoS6.
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